Matrix B below is a permutation matrix. Choose the correct answer for B.
B
=
\displaystyle {B}=
B
=
1
0
0
0
0
1
0
1
0
P
32
P
21
\displaystyle {P}_{{{32}}}{P}_{{{21}}}
P
32
P
21
P
31
\displaystyle {P}_{{{31}}}
P
31
P
32
\displaystyle {P}_{{{32}}}
P
32
P
21
P
32
\displaystyle {P}_{{{21}}}{P}_{{{32}}}
P
21
P
32
P
21
\displaystyle {P}_{{{21}}}
P
21
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